ARPN Journal of Agricultural and Biological Science       ISSN 1990-6145
   
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ARPN Journal of Agricultural and Biological Science                    June 2014 | Vol. 9 No. 6
 
Title:

Lead accumulation in different parts of okra plant (Abelmoschus Esculentus)

Author (s):

Nguyen Xuan Hai, Nguyen Minh Hung, Nguyen Viet Hiep and Bui Ngoc Dung

Abstract:

This paper presents experimental result of lead (Pb) affect on okra growth, yield and accumulation in different parts of plant. Results show that Pb concentrations in soil in the range of 16.13 ppm - 350 ppm positively affect okra plant height, yield constituents and yield. Concentration of Pb in roots leaves and fresh fruit of okra plant was in proportion to the concentration of Pb in soil. Lead was accumulated mainly in the roots of the okra plant, then in leaves and fruits. Especially, the concentrations of Pb in fresh okra fruits (eatable part) were lower than allowable limits. The okra plants can be used as multi-purpose trees for Gray Soil with Pb concentrations below 210 ppm.

 
 
 
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Title:

Wastewater treatment that contaminated with lead

Author (s):

Prayong Keeratiurai

Abstract:

This study was conducted to reduce the lead content in wastewater of metal plating factory. Wastewater contaminated with lead was filtered with carbon. Types of wood carbon for filtration were tamarind wood carbon and rubber wood carbon. The thickness of the carbon filter layer was 30 centimeters. Wastewater pretreatment improved wastewater with lime and leaved the reaction completely. Then the wastewater was filtered by the slow filtering process. Wastewater samples were collected every 1 hour to analyze the concentration of lead before and after filtration. The results of this study showed that the wastewater filtration with tamarind and rubber wood carbon reduced lead more than 99.75%. Wastewater through the filtration would have 0.003 mg of lead per liter, which was below the standard of industrial effluents defined 0.2 mg of lead per liter. The filtration lifetime of tamarind wood carbon and rubber wood carbon was 15 days and 4 hours, and 8 days and 9 hours, respectively. The result showed that the tamarind wood carbon have a lifetime for filtration more than the rubber wood carbon that was 6 days and 8 hours. The tamarind wood carbon was most appropriate for used as a filter.

 
 
 
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Title:

Heterotic effects for grain yield and related traits in maize variety azam

Author (s): Liaqat Shah, Hidayat Ur Rahman, Asif Ali, Kashif Ali Shah and Aaqil Khan
Abstract:

This research was conducted at Khyber Pakhtunkhwa (KP) Agricultural University Peshawar, Pakistan, during 2010 (spring and summer seasons). The experimental material comprised 64 entries (40 F1 genotypes, 20 S2 lines, 2 testers, and 2 checks) which were sown in partially balanced lattice square design with two replications. Data were recorded on cob length, kernel rows cob-1, 100 kernel weight and grain yield. Highly significant differences were observed among the testcrosses for most of the traits. Maximum mid parent and better heterosis for 100 grain weight was detected for TC- 45-4-1 and TC- 45-4-3-3 where Kiramat and Jalal were the testers, respectively. Positive heterosis over mid parent, better parent and positive standard heterosis over two commercial checks of grain yield were found for most of the testcrosses. These lines were having promising performance which could be used in future maize breeding programs to exploit hybrid vigour.

 
 
 
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Title:

A study of banana production in Bangladesh: Area, yield and major constraints

Author (s):

M.F. Hossain

Abstract:

In Bangladesh, the total banana cultivated area in the year 2006-07 was 145280 acres (58818 ha) and it was decreased to 130589 acres (52870 ha) in the year 2010-2011. Total production was decreased 1004520 tons to 800840 tons due to decreasing cultivated area. Yield was decreased during those days from 6.9 t acre-1 (17 tha-1) to 6.13 t acre-1 (15.1 tha-1). The highest banana cultivated area was observed in Tangail region considering 23 regions from 2006-07 to 2010-2011. Total banana production area of Tangail region gradually decreased from 26260 acres to 16863 acres. Yield of banana in Tangail region was 8.05 t acre-1 (19.9 tha-1) in 2010-2011. The minimum cultivated area of banana in 2010-2011 was obtained under Pabna region. Considering the year round availability, nutritional value, uses, prices, popularity and production, banana is considered the number one fruit in Bangladesh. Biological constraints such as insect-pest-diseases are also cause serious damage and yield loss of banana in Bangladesh.

 
 
 
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Title: Resistance of conocarpus lancifolius engl to different levels of salinity and water supply
Author (s): Basim A. Abd Ali
Abstract:

While the current tendency in Iraq is to utilize the ground water in irrigation of shelterbelts and plantations of Conocarpus lancifolius, this research has conducted to explore the limits of salinity and water deficiency under which C.lancifolius can survive and develop good biomass. Four levels of salt and three levels of water supply were applied on six - month seedlings for the period of 210 days. They were grown under climatic conditions of Baghdad city. Results showed that the adverse effect of water deficit on shoot length and number of branches increased with time, especially at hot months. End growth parameters showed that water deficiency affected more than salinity. All seedlings survived even under 12000 ppm concentration of salinity. Slight reduction in growth has obtained when irrigation was once each two days, but it was much more when the interval elongated to 3 days. The increase in salt concentration had no significant effects on dimensional properties, while weight parameters showed regular adverse relation to percent of salt in irrigation water.

 
 
 
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Title:

Trace elements and major minerals evaluation of earthworm casts from a selected site in southwestern Nigeria

Author (s): Ayoola P.B. and Olayiwola A.O.
Abstract:

Samples of dry earthworm casts lying on the soil surface were collected within the Ladoke Akintola University of Technology Ogbomoso campus randomly and were analyzed for the presence of trace elements using Atomic Absorption Spectrophotometer. While flame photometer was used for major minerals analysis. The results showed that trace elements concentrations in earthworm casts were as follow: Fe, 1400 0.01mg/kg, Mn, 79.00 0.03mg/kg, Zn, 65.00 0.01 Cu, 8.50 0.02, The mineral composition results showed that the earthworm casts contained K, 72500 0.03mg/kg, P, 3450.00 0.04mg/kg, Ca, 581.00 0.02mg/kg, Mg, 45.50 0.01mg/kg. When compared the results obtained from this research work with the results previously reported for some medicinal plants it shows that earthworm casts has the potentiality of being used as medicament in traditional medicine, the high contents of iron, zinc and manganese could make the earthworm cast a good antianaemic and antidiabetic agents.

 
 
 
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